Addiction therapists & psychiatrists in Honolulu, HI

I am passionate about serving people helping to rebuild trust, restore relationships, and move beyond struggles with trauma, addiction, intimacy, depression and brokenness.

I am open, approachable, and committed to listening carefully to your experiences without judgment. I believe that each person carries a unique story, and my goal is to provide a supportive space where you feel heard, understood, and encouraged as you navigate life’s challenges and opportunities for growth. Together, we can explore what is most important to you and work toward creating a life that feels meaningful, authentic, and aligned with your values.

My background includes earning a Ph.D. from the University of California, Berkeley, along with a lifelong appreciation for personal growth, nature, and the healing power of connection. Growing up learning to surf fostered a deep respect for the ocean and the lessons it offers about resilience, balance, and adapting to life's changing conditions. These experiences have shaped my belief in the importance of honoring each individual’s journey and recognizing that growth often comes through both challenge and reflection.

Welcome — I'm so glad you're here. I'm David Guo, a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) serving clients throughout Honolulu and across all of Hawaii via secure telehealth. Whether you're in Downtown Honolulu or on Maui, Molokai, Kauai, or the Big Island, I'm here to support you. I believe real healing starts with real connection. That means taking time to truly know you — your story, your life, your goals — so you never feel like just a chart. You won't feel rushed here. I'm available weekdays (evenings too) and weekends.

Aloha, I’m Cassandra or Cassie for short. My goal is to help you to grow into your whole self and create a space where you can feel heard and validated.

If you're suffering from anxiety and burnout, I'm here for you. So many times when you're experiencing burnout you forget about the importance of putting yourself first. In sessions, my goal is to help you find that voice again and confidence to serve yourself first before anybody else.

Are you feeling anxious, stressed, or just need someone to talk to? You've come to the right place. Throughout our lifetime, we are faced with many challenges, barriers, and successes that can all have their own level of overwhelmingness and joy. Whatever you are going through, let's work through it together.